Door closer and check.



J. BARDSLBY.

DOOR CLOSER AND CHECK.

A]?.ELIOA'JJION FILED MAY 24, 1902.

No. 723,808- SPATEN'IED MAR. a1, 1903.

V I0 MODEL. 3 SHEETS-SHEET 1.

WITNESSES: INVENTOR ms was PUERS c0, mo'rouma. mam-mm" n c -7 8,PATENTED MAR.'31,1903.' V

J.BARDSLEY.

DOOR GLOSER AND CHECK.

APPLICATION FILED MAY 24, 1902.

3 SHEETS-SHEET 2.

I I ATTORNEY No. 723,808. PATENTED MAR-31', 1903-.

J. BARDSLEY.

DOOR CLOSER AND CHECK.

APILIOATION FILED MAY 24, 1902.

a SHEETS-SHEET a.

H0 MODEL.

. INVENTOR fis'ephfiagvlsley' BY r ATTORNEY m: "dams mans co. mom-mudwuumcnom 04 c.

UNiTED STATES PATENT @FFICE.

JOSEPH BARDSLEY, OF MONTCLAIR, NEW JERSEY.

DOOR CLOSER AND CHECK.

SPECIFICATION forming part of Letters Patent No. 723,808, dated March31, 1903. Application filed May 24,1902. aerial No. 108.772. (No model.)

To all whom, it may concern.-

Be it known that I, JosEPH BARDSLEY,aa citizen of the United States, anda resident of Montclair, in the county of Essex and State of New Jersey,have invented certain new and useful Improvements in Door Closers andChecks, of which the following is a specification.

The invention relates to improvements in door closers and checks; and itconsists in the novel features, arrangement, and combinations of partshereinafter described, and particularly pointed out in the claims.

The object of the invention is to provide an entirely eificient anddurable door check and closer adaptable for either right or left handdoors, the closer embracing a double-acting spring, which may be woundfrom one end during the opening of a right-hand door and from the otherend during the opening of a left-hand door.

Afurther object of the invention is to produce a door check and closerhavingan' in closing casing embracing a spring-chamber andliquid-cylinder in free communication with each other, but from whichthe liquid cannot escape during the shipment or hand ling of the device,the upper end of said casing being rendered liquid-tight by means whichwill not retard the movement ofthe parts extending through the same.

In carrying out my invention I provide a structure embracing the usualactuating-spindle and operating lever-arm thereon with suitableintermediate connections for operating the checking-piston from saidspindle.

and either end of said spring from said leverarm, said spring and itsconnecting parts being free of said spindle and not depending for theiroperation upon said spindle.

The door check and closer of my invention also embraces certain noveldetails of form, arrangement, and construction, whereby the severalfeatures of the apparatus are rendered entirely efficient, durable, andconvenient of use.

The invention will be fully understood from the detailed descriptionhereinafter presented, reference being had to the accompanying drawings,in which Figure l is a top view of a door check and closer constructedin accordance with and ted line 2 2 of Fig. 4.

top and bottom plates applied thereto. 9 is a top view of the bottomplate connected embodying the invention, the several parts being shownin the position they occupy when the door is in its closed position.Fig. 2 is a top view, partly broken away and partly in section, of same,the section being on the dot- Fig. 3 is a bottom view of the rotaryplate, which engages the upper end of the spring for winding the latterduring the opening of the door when the device is applied to right-handdoors. Fig. 4: is a central vertical section of the door check andcloseron the dotted line 4 4 of Fig-1. Fig. 5 is a horizontal section ofsame on the dotted 1ine55 of Fig. 4; Fig. 6is'a detached perspectralportion by the sleeve shown in Fig. 6, .while the outer end portions ofsaid frame are to engage the top and bottom plates shown in Figs. 3 and9 connected with the ends of the closing-spring. Fig. 8 is adetache'd'pei'- spective view of the closing-springwith' the with thelower end of the closing-spring.

-Fig. 10 is a top view; partly broken away and with theclosing-cap'removed, of the exterior casing of the check and closer,this figure ,being presented for the purpose of illustrating thepartition at the base of the springchamber. Fig. 11 is a top view of abearingplate which is to be applied upon the actuating-spindle andsecured by screws tothe partition shown in Fig..10 at the base-of thespring-chamber. tom v;iew of a tool employed for winding theclosing-spring preparatory to its inclosure {within the spring-chamber,and Fig.1-3 is an edge view of same.

Fig.

Fig. 12 isa detached bot- In the drawings, 20 designates the exteriorcasing, comprisingthe cylinder 21 and springchamber 22, said cylinderbeing disposed below said spring-chamber, as usual, and partiallyseparated therefrom by means of a partition 23, disposed at the base ofthe springchamber and adapted to receive the bearingplate 24, which hasa vertical tubular central portion fitting upon the actuatingspindle 25and is adapted to be secured by screws to the said partition 23, asshown in Fig, 4. The bearing-plate 24 is formed with apertures 26, whichafford a free communication for the liquid between the cylinder2l andspring-chamber 22. The cylinder 21 is in one integral casting, except atone end,where said cylinder is closed by means of the cap 27, fittingwithin an annular recess 28, formed in the end of said cylinder anddetachably held in place by means of the screw 29 and spiderframe 30,the latter engaging an annular shoulder 31, formed with the cylinder 21and having a central threaded aperture to receive the inner threaded endof the screw 29. It will be observed that upon the tightening of thescrew 29 the head of the latter bearing against the cap 27 will operateto bind said cap very tightly against the shoulder 32, formed at thebase of the aforesaid recess 28.

\Vithin the cylinder 21 is placed the piston 33, within which is formedan aperture comprising the sections 34 35, the latter being less indiameter than the section 34 and being at the inner end of the piston.At the junction of the sections 34 35 is formed the valveseat 36 for thebal valve 37, which when against said seat will close the passagethrough the piston, as during the closing of the door, and which isprevented from escaping from the larger section 34 by means of the pin38, which extends entirely through the piston, as shown in Fig. 4, andserves the twofold purpose of confining the ball-valve 37 and pivotallyreceiving the outer end of the piston-rod 39, whose inner end receives apin 40, depending from the crank-arm 41, carried by the lower end of theactuatingspindle 25. The piston 33 is of cup shape and is formed in itsinterior with the thickened sections 42 43, said section 42 containingthe passage through the piston and said sections 42 43 aflordingsubstantial bearingsurfaces for the pin 38. The outer end of thepiston-rod 39 fits freely, though rather snugly, between the facingsides of the sections 42 43, and hence the pin 38 is capable ofwithstanding all of the strain to which it may be subjected during theuse of the door check and closer. The fact that the pin 38 crosses thelarger section 34 of the aperture through the piston enables theemployment of the maximum length of piston-rod 39 and the securing ofthe outer end of said rod as nearly as may be desired to the outer faceof the piston 33, and this construction and arrangement is desirablebecause the long piston-rod is more effective in uniformly moving thepiston, and side thrust on the piston is prevented.

The cylinder 21 is provided with the by-pass 44, extending around thepiston 33 and connected with a release-port 45 forcooperation with aport 46, formed in the wall of the pis ton 33. The cylinder 21 is alsoprovided with the adjusting-screw 47 for controllingthe passage of theliquid through the by-pass 44 in a well-known manner. The port 46 in thepiston 33 is intended to pass into alinement with the release-port 45when the door has reached a nearly-closed position, so that there may besudden release for the liquid from the bypass 44 through the ports 45 46at such time as it may be desired that the closingspring may exert itsforce to firmly close and latch the door. Adjacent to the inner edge ofthe port 46 I cut away the surface of the piston 33, as at 48, so thatupon the piston 33 reaching the position at which the release of theliquid in the by-pass 44 should be effected the said liquid may flowthrough the space 48 as well as through the port 46, and moreparticularly through the space 48 should for any reason the port 46 passoutward beyond the release-port 45, the object being to assuredlyeffect'the release of the liquid when the door has reached anearly-closed position. There may be occasions, due to irregularities inthe construction of the apparatus or in the wear or disposition of theparts thereof, when the port 46 would pass partly beyond the releaseport 45 at a time when the release from the by-pass ought to take place,and under any such condition the space 48 cut into the surface of thepiston 33 will pass into communication with the release-port 45 andafford a convenient outlet for the liquid.

The actuating-spindle 25 extends upward through the spring-chamber 22and has detachably secured upon its upper polygonal end the lever-arm50, carrying a pivoted double-pointed pawl 51 for engagement with theratchet-plate 52, which is exposed over the cap 53, closing the upperend of the springchamber 22, and having a central vertical tubular hubportion 54, whose upper end passes within an annular recess 55, formedin the under side of the ratchetplate 52. The ratchet-plate 52 is formedwith a central depending tubular hub portion 56, which is free upon theupper end of the actuating-spindle 25 and passes snugly within withoutbinding against the hub 54 of the cap 53. The inner surfaces of the hub56 are cut away to form an annular chamber 57, and the inner surfaces ofthe hub 54 are cut away to form the annular chamber 58, and the entranceto both of the chambers 57 58 is through the aperture 59, formed in theratchet-plate 52, said aperture 59, as shown in Fig. 4, opening at itslower end into both of the said chambers 57 58. The chambers 57 and 58will be filled with any suitable soft packing material forced downwardthrough the aperture 59, in order that a liquid-tight joint, when thesame is desired, may be formed between the spindle 25 and hub 56 andbetween the hub 56 and the hub 54. The packing within the chambers 57 58will also aid in securing a free movement of the hub 56 upon the spin-'dle 25 and within the hub 54 and in avoiding friction between thecontacting surfaces of the saidfiparts. The hub 56 extends downward andforms a substantial bearing for the upper end'of the actuating-spindle25, and the lower end of the hub 56 is formed with projecting lugs 60 toengage the recesses 61, formed at the upper part of the intermediateframe 62, which is also free upon the actuating-spindle 25 and comprisesthe upper and lower plates 63 64, respectively, and connecting side arms65 66, as illustrated in Fig. 7. The engagement of the lower end of thehub 56 with the intermediate frame 62 is for the purpose of enabling theratchet-plate 52 to rotate said frame 62 in either direction inaccordance with the movement imparted to said ratchetplate from thelever-arm 50.

Within the lower end of the spring-chamber 22 is placed the bottom plate67, which has a central opening enabling said plate to pass downwardupon the actuating-spindle 25 and turn freely around the same. The plate67 is formed with the vertical hub 68 adapted to pass within the lowerend of the closing-spring 69, and exterior to said hub 68, the saidplate 67 is formed with a series of lugs 70, upon which the lower end ofthe spring 69 rests and which vary in height corresponding with theinclination of the lower coil of said spring, so as to affordasubstantially uniform ing to form a stop for preventing the plate 67from rotating in one direction beyond a given extent. The plate 67 isalso formed with the upwardly-extending lugs 74 75, these lugs beingwithin the outline of the hub 68 and being adapted to be respectivelyengaged by the lugs 76 77, formed at the lower end of the intermediateframe 62, so that the motion of said frame 62 when turned in onedirection or toward the left (looking at Figs. 7, 8, and 9) will resultin the lugs 76 77 pressing against the lugs 74 and compelling the plate67 to turn with said frame 62 and wind the spring 69 from the lower endof the latter.

Within the upper end of the spring-chamber 22 and resting upon the upperend of the spring 69 is the top plate 78, which has a central opening 79snugly receiving the downwardly-projecting portion of the hub 54 of thecap 53, as shown in Figs. 2 and 4. The top plate 78 is formed with thedepending hub 80 to enter the upper end of the spring 69 and with theseries of lugs 81 to bear upon the upper coil of the spring 69, saidlugs 81 corresponding substantially with the lugs 70, formed on thebottom plate 67.

The top plate 78 is also formed with the depending lugs 82 83, to beengaged, respectively, by the upwardly-projecting lugs 84 85, formed onthe upper end of the intermediate frame 62, the purpose of theengagement of the said lugs 84 85 of the frame 62 with the lugs 82 S3 ofthe top plate 78 being to communicate the rotary motion of said frame62'when said frame 62 is moved in one direction to the top plate 78,whereby to wind the spring 69 from its upper end. The top plate 78 isformed with a lip 86 and arm 87, corresponding with but arrangedreversely to the lip 71 and arm 72 of the bottom plate 67, the said lip86 being provided to receive the upper hooked end of the spring 69 andthe arm 87 being for contact with the vertical rib 73, above referredto, said arm 87 contacting with one edge of said rib 73 and the arm 72contacting with the opposite edge of said rib. The contact of the arm 87with the rib 73 is to limit the rotation in one direction of the topplate 78. The top plate 78 is also formed with the key-slots 88, whichperform no function in the usual operation of the door-closer, but whichare utilized in connection withthe key 89 (shown in Figs. 12 and 13) forwinding the spring 69, so that said spring may be placed under aninitial tension, as hereinafter explained.

The spring 69 will preferably consist of a flat wire coil, although I donot limit the in- 'vention to the use of fiat wire for the spring 69,since springs coiled from flat wire and round wire have been equallywell known for very many years.

In the disposition of the intermediate frame 1 62 upon theactuating-spindle 25 the lugs 76 77 at the lower end of said frame willbe arranged at reverse sides of the lugs 74 75 on the bottom plate 67with the lug 76 against that side of the lug 74 nearerto the stop-arm72, so that upon the rotation toward the left (looking at Figs. 7, 8,and'9) of said frame 62 the said lugs 76 77 may be enabled to turn thebottom plate 67 toward the left or in a direction carrying its stop-arm72 from the rib 73, this motion of the plate 67 serving through the lip71 to wind the spring 69 from its lower end. The lugs 84 85 at the upperend of the frame 62 will also be arranged at opposite sides of the lugs82 83 of the top plate 78, but reversely to the relation of the lowerlugs 76 77 with the lugs 74 75 of the bottom plate 67, so that upon therotation of the frame 62 to turn the lower plate 67 the upper lugs 84 85will recede from said lugs 82 83 of said top IIO plate and so that uponthe rotation of the said top plate by the engagement of the lugs 84 85with said lugs 82 83 the top plate may turn and wind the spring 69 fromits upper end, the

lower lugs 76 77 at such time receding from the lugs 74 75 of the lowerplate 67, the latter being thus. allowed to remain at rest with its arm72 pressing against the rib 73. When the parts of the door check andcloser are ar- 7 ranged for a right-hand door, as shown in Fig. 1, therotation of the frame 62 from the lever 50 and ratchet-plate 52 willwind the spring 69 from its upper end, said frame 62 then engaging thelugs of the top plate 78, and when the lever-arms and pawl 51 arearranged for a left-hand door the rotation of the frame 62 from the saidratchet-plate 52 will impart rotary motion to the lower plate 67 andwind the spring 69 from its lower end.

I desire to direct special attention to the fact that all of the partsinclosed within the spring-chamber, including the spring, are free ofand in no manner connected to the actuating-spindle 25, said spindlebeing employed mainly for imparting motion from the lever-arm to thepiston 33. The spring 69 may, as above explained, be wound from eitherits upper end or lower end, and under either condition the winding ofthe spring will be eifected solely from the lever-arm 50, acting throughthe pawl 51 and ratchet-plate 52, the latter, as hereinbefore explained,being keyed to the intermediate frame 62, whose motion results inwinding the spring.

The lever-arm 50 is of usual character and is pivotally connected at itsouter end with the adjustable connecting-rod 90, having at one end theusual bracket 91, adapted to be secured to the lintel over the door. Therod 90 is comprised of the threaded section 92 and split section 93,whose end adjoining the said section 92 is in the form of a split sleeve94:, threaded on its interior to engage the thread of the section 92 andthreaded on its exterior to receive the clamping-nut 95. The sleeve 94on its exterior is slightly tapered, and the members of the section 93have a tendency at the sleeve 94 to spring outward from each other. Whenthe nut 95 is unscrewed from the sleeve 94:, the said sleeve will opensufiiciently to allow of a free sliding movement of the section 92within it for the purpose of adjusting the length of the rod 90, andwhen the nut 95 is returned upon the sleeve 94 it will draw the membersof said sleeve toward each other and snugly clamp the same against thethreaded section 92, so as to prevent endwise motion of the latter.

It will thus be seen that the rod 90 of the construction described maybe Very readily and conveniently adjusted as to its length, and saidlever-arm constitutes a feature of the present invention.

The operation of the door check and closer will be fullyunderstood fromthe description presented hereinbefore. It may be mentioned, however,that the spring 69 is always under an initial tension, and the manner ofapplying this initial tension to the spring 69 maybe explained. Thistension is applied to the spring 69 after the spring has been insertedwithin the spring-chamber 22, but before the cap 53 has been placed overthe spring. Upon the first insertion of the lower plate 67, spring (39,and upper plate 78 the upper end of the spring will extend above theupper edges of the spring-chamber 22, and at such time I apply the tool89 (shown in Figs. 12 and 13) to the top plate 7S,thelu gs 96 of saidtool entering the recesses 88 of said top plate and the hole in thecenter of said tool 89 passing over the upper end of the spindle 25. Thetool 89 is recessed along its edges, and when it has been inserted toengage the top plate 78 the said tool 89 mayby means ofanordinaryspannerbeturned to rotate the plate 78 and, through the latter,wind the spring 69, so as to create therein the initial tensiondesired,the plate 78 at such time being permitted to be turned as muchas requisite, because of its arm 87 being above the upper edge of thespring-chamber 22, and consequently free of the rib 73. After the spring69 has been wound by the tool 89 as much as desired downward pressurewill be supplied upon the upper end of said tool and said spring and topplate 78 be pressed downward thereby into the spring-chamber 22, theunwinding of the spring after the same has been pressed downward intothe chamber 22 being prevented by the fact that the stop-arm 87 on thetop plate 78 will be engaged by the rib 73. After the spring and topplate 78 have been pressed downward into the spring-chamber 22 and saidtop plate secured by the contact of the arm 87 with the rib 73 the tool89 will be withdrawn upward over the spindle 25, and thereupon the cap53 and ratchetplate 52 will be applied, after which the leverarm 50 willbe secured upon the upper end of the spindle 25. The packing materialfor the chambers 57 58 may be forced into said chambers at anyconvenient time.

The means shown for securing the end cap 27 at the end of the cylinderor liquid-chamher 21 are of importance, because they not only enablesaid cap to be firmly and conveniently secured, but permit of theemployment of a cap 27, having plain surfaces corresponding with thesurfaces at the opposite end of said cylinder, the ends of said cylinderthus corresponding with each other and neither end having anyunnecessary features for enabling it to correspond with the other. Themeans shown for securing the cap 27 also avoid any threading of the capor cylinder, the only screw-threads employed being those on the screw 29and in the spider-frame 30.

The spring and liquid chambers freely communicate with each other, andthe liquid will be poured into the spring-chamber until the same fillsthe liquid-chamber and partly fills the spring-chamber, thus assuringthe proper operation of the piston and the constant lubrication of theoperative parts within the spring-chamber. The liquid will be introducedinto the spring and liquid chambers before the cap 53 is applied toposition, and the liquid will then be sealed within the device by theapplication of said cap and the introduction of the packing material tothe annular recesses or chambers 57 58. No difficulty will beexperienced in rendering liquid tight the joint between the outer edgesof the spring-chamber and the cap 53, and my present invention removesthe great difficulty which has heretofore existed in IIO sealing thejoint between the walls of the central opening in said cap and theworking parts extending through the same, since in accordance therewithI provide means for sealing said joint or joints in a simple andinexpensive manner, and which will not result in any material frictionalor binding action against said working parts. The packing material forthe chambers 57 58 will be introduced through the aperture 59 from theeX- terior of the device, and this material will be of a semiplasticcharacter and capable of becoming firm within the chambers 57 58 withoutunduly hardening therein or creating friction. The packing material forthe chambers 57 58 should also be of such nature as not to dissolveunder the action of the oil or checking liquid. In practice this packingmaterial firmly fills the chambers 57 58 and tends to lessen rather thancreate friction.

It is of advantage to be enabled to seal the upper end of thespring-chamber, since under such condition the checking liquid may beintroduced into the device before the same is shipped and all danger ofleakage during shipment or the handling of the device is avoided. Thesealing of the spring-chamber is in the present instance especiallydesirable, since the double-acting spring and its cooperative parts,arranged as described, render it entirely unnecessary for the user ofthe device to remove the cap 53 in applying the same to right or lefthand doors.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a door-closer, the operating lever-arm, and the spindle to whichsaid lever-arm is connected, combined witha double-acting coiledwirespring encompassing but free of said spindle, and means intermediatesaid lever-. arm and the upper and lower ends of said spring and free ofsaid spindle for winding said spring at its respective ends from saidlever-arm in accordance with its direction of motion; substantially asset forth.

2. In a door-closer, the operatinglever-arm, the actuating-spindle towhich said'lever-arm is secured, the double-acting coiledwire springencompassing but free of said spindle, and means intermediate saidlever-arm and the upper and lower ends of said spring and free of saidspindle for winding said spring at its respective ends from saidlever-arm in accordance with its direction of motion, combined with thecylinder, the checking-piston therein and means connecting said spindleand piston for operating the latter from said spindle; substantially asset forth.

3. In a door-closer, the operating lever-arm, and the spindle to whichsaid lever-arm is connected, combined witha double-acting springencompassing but free of said spindle, the rotary top plate connectedwith the upper end of said spring, the rotary bottom plate connectedwith the lower end of saidspring, the intermediate rotary frame adaptedto engage and turn the said bottom plate when rotated in one directionand to engage and turn said top plate when rotated in the reversedirection, and a locking device con nected with said lever-arm andextending into engagement with said intermediate frame for rotating thesame in either direction in accordance with the direction of motion ofsaid lever-arm, said plates, spring, frame and locking device being freeof said spindle; substantially as set forth.

4. In a door-closer, the operating lever-arm, and the spindle to whichsaid lever-arm is connected, combined with the double-acting.

spring encompassing but free of said spindle, a rotary frame free ofsaid spindle and adapted to effect when rotated in one direction thewinding of said spring from its upper end and when rotated in thereverse direction the winding of said spring from its lower end, andmeans connecting said frame with said leverarm for rotating said framein accordance with the direction of motion of said lever-arm;substantially as set forth.

5. In adoor-closer, the main lever-arm, and the spindle to which saidlever-arm is connected, combined with the double acting springencompassing but free of said spindle, the plate 52 mounted loosely uponthe upper end of said spindle and having a downwardlyextending key,meansfordetachablyconnecting said plate with saidlever-arm so that thelatter may rotate said plate in either direction, a rotary frame alsoloosely mounted upon said spindle and engaged by said key forenabling-said plate to rotate said frame in either direction, meansconnected with the opposite ends of said spring and adapted to bealternately engaged by the said frame for enabling said frame whenrotated in one direction to wind said spring from one end and whenrotated in the reverse direction to wind said spring from its other end,and a stop for bold ing one end of said springwhile the other end ICCthereof is in action; substantially as set forth. 7

' spring encompassing but free of said spindle,

a rotary frame free of said spindle and adapted to effect when rotatedin one direction the winding of said spring from its upper end and whenrotated in the reverse direction the winding of said spring from itslower end, means connecting said frame With said leverarm for rotatingsaid frame in accordance with the direction of motion of saidlevcr-arm,. the cylinder for liquid, the piston in said cylinder, andmeans connecting said piston with said spindle for enabling said spindleto operate the same; substantially as set forth.

8. In a door-closer, the ext eriorcasing fortning a springchamber, thespindle extending through said chamber, the main leverarm connected tosaid spindle, and the cap for closing said chamber, said cap having atits center the tubular hub 54: containing the annular recess 58,combined with the spring within said chamber, the plate 52 exposed abovesaid cap and having the hub 56 receiving and free upon said spindle andalso having the recess 57 and aperture 59, the latter leading to saidrecesses 57, 58, a rotary frame freely mounted upon said spindle andengaged by the hub 56 for winding said spring in accordance with thedirection of rotation of said plate 52, means connecting said plate andsaid lever-arm, the cylinder for containing liquid, the piston in saidcylinder, and means connecting said piston with the lower end of saidspindle for enabling said spindle to operate said piston; substantiallyas set forth.

9. In a door-closer, the main lever-arm, and the spindle to which saidlever-arm is connected, combined with the doubleacting springencompassing but free of said spindle, the inclosing casing having thevertical rib 73, the rotary top plate connected with the upper end ofsaid spring and having the stop-arm 87 for engaging said rib and alsothe downwardly extending lugs 82, 83, the rotary bottom plate connectedwith the lower edge of said spring and having the stop-arm 72for-engaging said rib 73 and also the upwardly-extending lugs 74, 75,the intermediate rotary frame freely mounted on said spindle and havingthe lugs 76, 77, at its lower end to engage said lugs 74, 75, of thebottom plate and also having the lugs 84, at its upper end to engagesaid lugs 82, 83 of said top plate, and a tubular locking device freelymounted upon said spindle and connected with said 1ever-arm andextending into engagement with said intermediate frame for rotating thesame in either direction in accordance with the direction of motion ofsaid lever-arm, whereby to wind said spring from either end from saidlever-arm; substantially as set forth.

l0. Inadoor-closer,the main lever-arm,and the spindle to which saidlever-arm is connected, combined with the double acting springencompassing but free of said spindle, the inclosing casing having thevertical rib 73, the rotary top plate connected with the upper end ofsaid spring and having the stoparm 87 for engaging said rib and also thedownwardly-extending lugs 82, 83, the rotary bottom plate connected withthe lower edge of said spring and having the stop-arm 72 for engagingsaid rib 73 and also the upwardlyextending lugs 74, 75, the intermediaterotary frame freely mounted on said spindle and having the lugs 76, 77,at its lower end to engage said lugs 74, 75, of the bottom plate andalso having the lugs 84, 85 at its upper end to engage said lugs 82, 83of said top plate, the plate 52 freely mounted on said spindle andhaving its hub portion extending downward into engagement with saidintermediate frame for rotating said frame in either direction, andmeans detachably connecting said plate 52 with said lever-arm forenabling the latter to rotate said plate in either direction, whereby towind said spring from either end; substantially as set forth.

11. In a door-closer, the spring-chamber, spring, act uating-spindle,and main lever-arm 50 connected with said spindle, combined with the rodpivotally secured at one end to said lever-arm 50 and at its other endcarrying the securing-bracket 91, said arm 90 comprising the threadedsection'92, split section 93 and nut 95, and said section 93 having thesleeve 9% tapered on its outer surface, threaded on its inner surface toreceive said section 92, and threaded on its outer surface to receivesaid nut 95, and said sleeve haviuga normal tendency to spring outwardfrom said section 92; substantially as set forth.

12. In a door check and closer, the exterior casing forming thespring-chamber and liquid-chamber, a double-acting spring within saidspring-chamber, the actuating-spindle, and the lever-arm, combined withthe piston in said cylinder, means connecting said piston with saidspindle, the cap 27 set into a recess in the end of said cylinder andengaging an inner shoulder 32 within said cylinder, the frame 30engaging a shoulder-31 within said cylinder,and the screw 29 passingthrough said cap and engaging a threaded aperture in said frame 30;substantially as set forth.

13. In a door-check, the liquid-cylinder, and the actuating-spindle,combined with the piston in said cylinder and having the passage throughit at one side of its center and comprising the sections 34, 35, andvalve-seat 36, the ball-valve 37 in said passage-section 34, the pin 38extending through the diameter of said piston and crossing saidpassagesection 34 to confine said ball-valve 37, the crank-arm havingthe pin 40, carried at the lower end of said spindle, and theconnecting-rod 39 pivotally mounted at one end upon said pin 40 and atthe other end upon said pin 38, said pin 38 thus serving the twofoldpurpose of confining said ball-valve 37 and receiving the outer end ofsaid rod 39; substantially as set forth.

14. In a door-closer, the operating level arm and the spindle to whichsaid lever-arm is connected, combined with the double-acting springencompassing said spindle, the inclosiug casing forming thespring-chamber, means for restraining the lower end of said spring, theplate 78 connected with the upper end of said spring and having thestop-arm 87, a stop 73 on the inner wall of said casing to be engaged bysaid stop-arm 87, and means independent of said spindle for connectingsaid plate 78 with said lever-arm for'enabling said arm to wind saidspring, said plate 78 being, also, recessed, as at 88, for permittingthe placing of said spring under tension by means of a suitable tool, asshown, prior to the inclosing of the upper end of said spring Withinsaid casing; substantially as set forth.

15. In a door check and closer, the exterior casing forming thespring-chamber and liquid-cylinder, the spindle extending through saidchamber, the main lever-arm connected to said spindle, and the cap forthe upper end of said chamber, said cap having the tubular hub 54:containing the annular recess 58 adapted to contain a packing material,combined with a closing-spring within said chamber, the plate 52 exposedabove said cap and having the hub 56 for effecting the winding of saidspring and containing the annular recess 57 adapted to contain a packingmaterial, means for permitting the introduction of a sealingfrictionless packing materialfrom without the apparatus to saidrecesses, and the piston connected with said spindle; substantially asset forth.

16. In a door check and closer, the exterior casing forming thespring-chamber and liquid-cylinder, the spindle, lever-arm, piston,closing-spring, and cap for said chamber, combined with a tubular hubreceiving said spindle at the center of said cap and containing theannular recess surrounding said spindle, and means for permitting theintroduction from without the device of a sealing frictionless packingmaterial to said recess to become firm therein and prevent leakagearound said spindle; substantiallyas set forth.

Signed at New York, in the county of New York and State of New York,this 23d day of May, A. D. 1902.

JOSEPH BARDSLEY, Witnesses:

CHAS. C. GILL, ARTHUR MARION.

